Half to john e



(No Model.)

W. B. BOTSPORD.

FOLDING GHAIR.

Nb. 427,964. Patented May 13, 1890.

Wlhmssas. W.

UNITED STATES PATENT OFFICE.

WILLIAM B. BOTSFORD, OF BINGHAMTON, NEW YORK, ASSIGNOR OF ONE- HALF TOJOHN E. WVENTZ, OF SAME PLACE.

FOLDING CHAIR.

SPECIFICATION forming part of Letters Patent No. 427,964, dated May 13,1890.

Application filed March 13, 1889. Serial No. 303,116. (No model.)

To all whom it may concern.-

Be it known that 1, WILLIAM B. BOTSFORD, of Binghamton, county ofBrooine, in the State of New York, a citizen of the United States haveinvented certain new and useful Improvements in Folding Chairs, of whichthe following is a specification.

My invention relates to the construction of chairs which are convertibleat will into a high or table chair or a low chair on wheels.

My object is to produce a chair readily convertible from a high to a lowchair, or reversely.

In this invention the Wheels are mounted at the lower ends of the frontlegs (as a high chair) and at the joint in them, so that the lowersection of the front rail carries the wheels when it is used as a lowchair or carriage.

My invention consists in the several novel features of construction andoperation hereinafter described, and specifically set forth in the claimannexed, reference being had to the accompanying drawings, in which-Figure 1 is a perspective view of the chair complete as a high chair.Fig. 2 is a like view of the same as a low chair. Fig. 3 is an enlargeddetail of a portion of the front legs, showing the joint between theleg-sections (in dotted lines) and the step-support integral with thecasing around the joint. Fig. 4 is a detail sectional elevation of thelocking-bar and the lock in the high chair. Fig. 5 is a like view of thesame in a low chair. Fig. 6 is a horizontal transverse section of one ofthe front legs and the casing. Fig. 7 is a vertical longitudinal sectionof the construction shown in Fig. 3.

In this chair, 1 is the stationary back, 2 the seat, and 3 the arms.

4 4 are the front legs, jointed, as at 5, and adapted to pivot upon thepin 6, and 7 7 are rear legs when it is set up as a high chair. On thefront legs'I mount the wheels 8, one set being j ournaled at the lowerends of the legs and the other set upon the pivot-pins 6. The legs 4 and7 are connected by diagonal braces or a brace-frame 9, pivotallyconnected to the front legs.

10 10 are counter-braces between the braces 9 and the lower ends of thefront legs and pivotally connected to them. The rear ends of rabbetedtransversely, as at 16, and 17 is a spring secured to the loop andbearing against the face of the bar 15. The rear legs 7 are hinged to orpivoted upon the lower end of the back 1. A tray 18 is attached to thefront above the seat in any ordinary manner. A step 19 is mounted uponthe front of the jointcasing 21, through which the pin 6 passes. Thiscasing is open at the rear.

To change the chair from a high one to a low one, I unlock the bar 15and push downward and forward upon the back, which swings the lowersections upon their pivots 6, bringing the sections down to ahorizontal, so that the sections then stand upon the wheels, and therear legs, are swung backward and upward, the barv 11 of the brace-frame9 sliding in the grooves 12, the frame swinging upon its bearings in thefront legs until the lower ends of the rear legs become reversed .intheir position far enough to become the handle, as shown in Fig. 2.During this movement the lock-bar 15 simply slides longitudinallythrough the loop 14.

What I claim is The combination, with the sectional front legs hingedtogether, the rear legs provided with longitudinal grooves in theirinner faces and hinged to the seat, anda diagonal brace pivoted upon thefront legs and arranged to slide in the grooves in the rear legs, ofalockbar pivoted upon the brace and locking into a loop upon a barbetween the rear legs, and a retaining-spring secured to the loop andbearing against the lock-bar, as set forth.

In witness whereof I have hereunto set my hand this 19th day ofFebruary, 1889.

WM. B. BOTSFORD.

In presence of O. W. SMITH, H. P. DENISON.

